Production of Two Single-Λ Hypernuclei by Ξ<sup>-</sup> Capture

Aoki, S.; Kim, C.O.; Hirata, Shuichi; Tezuka, I.; Funahashi, H.; Masuoka, A.; Ieiri, M.; Maeda, Y.; Yokota, J.; Park, Hae‐Sim; Hoshino, K.; Shibuya, H.; Ozaki, Ryosuke; Bahk, S. Y.; Chung, S. H.; Kim, J.Y.; Shimizu, Hiroshi; Takashima, R.; Teranaka, M.; Watanabe, Toru; Itow, Y.; Nagoshi, C.; Hahn, C.; Nakamura, Makoto; Song, J.; Takeuchi, F.; Oda, Hirotaka; Matsuda, Y.; Sugimoto, M.; Niwa, K.; Okabe, H.; Chung, K.S.; Togawa, H.; Iijima, T.; Kodama, K.; Masaike, A.; Kobayashi, M.; Kim, D.C.; Nakano, Takashi; Ono, Shunsuke; Park, I.G.; Kikuchi, Keiji; Tanaka, Kenichi; Hara, T.; Yoon, C. S.; Ushida, N.; Watanabe, Shuji; Nakanishi, S.; Kazuno, M.; Sato, Y.; Imai, K.; Ishigami, Takahiro; Nakazawa, K.; Tajima, H.

doi:10.1143/ptp.89.493

Cited by 35 publications

(15 citation statements)

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“…Other observed data on the Ξ hypernucleus 13 Ξ B ( 12 C + Ξ − ) were obtained by emulsion data [10,11]. The reported Ξ − binding energies are 3.70 +0.…”

Section: Introductionmentioning

confidence: 89%

“…)+Ξ − (1s). (2) Another possible binding energy is B Ξ − = 1.11 ± 0.25 MeV, if 10 Λ Be was left in an excited state. Recently JLab reported the energy spectra of 10 Λ Be using the (e, e ′ K + ) reaction [13].…”

Section: Introductionmentioning

confidence: 99%

“…Recently JLab reported the energy spectra of 10 Λ Be using the (e, e ′ K + ) reaction [13]. When the energy of the excited state in 10 Λ Be is taken into account, the Ξ − binding energy is interpreted around 1.11 MeV, and the observed 15 Ξ C in the Kiso event is in the state 14 N (g.s. )+Ξ − (1p) [14].…”

Section: Introductionmentioning

confidence: 99%

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Mean-field approaches for Ξ− hypernuclei and current experimental data

et al. 2016

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Motivated by the recently observed hypernucleus (Kiso event) 15 Ξ C ( 14 N+Ξ − ), we identify the state of this system theoretically within the framework of the relativistic-mean-field and Skyrme-Hartree-Fock models. The ΞN interactions are constructed to reproduce the two possibly observed Ξ − removal energies, 4.38 ± 0.25 MeV or 1.11 ± 0.25 MeV. The present result is preferable to be 14 N (g.s.)+Ξ − (1p), corresponding to the latter value.

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“…Other observed data on the Ξ hypernucleus 13 Ξ B ( 12 C + Ξ − ) were obtained by emulsion data [10,11]. The reported Ξ − binding energies are 3.70 +0.…”

Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

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Mean-field approaches for Ξ− hypernuclei and current experimental data

et al. 2016

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“…Until now, Λ hypernuclei are the most familiar objects in strangeness physics and have rich experimental events, that were largely created in laboratories from 3 Λ H to 208 Λ Pb, while it is generally recognized that Σ hypernuclei do not exist except 4 Σ He. Furthermore, there are only several observed data on Ξ hypernuclei in 12 C + Ξ − and 14 N + Ξ − systems [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Quark mean field model with pion and gluon corrections for Λ and Ξ0 hypernuclei and neutron stars

Xing

Shen

2017

Phys. Rev. C

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Properties of Λ, Ξ 0 hypernuclei and neutron stars are investigated in quark mean field model with pion and gluon corrections. Firstly, u, d, and s quarks are confined by relativistic harmonic oscillator potentials to generate the baryons, like nucleon, Λ, Σ, and Ξ hyperons. The effects of pion-quark coupling and one-gluon exchange are considered perturbatively. Then, the baryons interact with each other through exchanging σ, ω, and ρ mesons between quarks in hypernuclei and nuclear matter. The strengths of confinement potentials for u, d, and s quarks are determined by the masses and radii of free baryons. The coupling constants between the quarks and mesons are fixed by the ground-state properties of several nuclei and single-hyperon potentials at nuclear saturation density, which arises three parameter sets for the coupling constants between mesons and quarks, named QMF-NK1S, QMF-NK2S, and QMF-NK3S. Compared to the results of previous quark mean field model without pion and gluon corrections, it is found that properties of Λ hypernuclei, i.e. the single Λ energies, are more consistent with the experimental observables. Properties of Ξ 0 hypernuclei are also calculated and compared with the results in previous quark mean field model. With these three parameter sets, the neutron stars containing hyperons are investigated through solving the Tolman-Oppenheimer-Volkoff equation. Maximum masses of neutron stars approach 2.1M ⊙ with hyperons and corresponding radii are around 13 km.

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“…For an S = −2 system, several light double Λ hypernuclei have been observed, such as the 6 ΛΛ He, 10 ΛΛ Be, 12 ΛΛ B, and 11 ΛΛ Be ( 12 ΛΛ Be ) [2][3][4]. Furthermore, there are only three events indicating the Ξ hypernuclei, which are the 11 B + Ξ − , 12 C + Ξ − , and 14 N + Ξ − systems [5][6][7][8]. The analyses of first two events were strongly dependent on the theoretical models.…”

Section: Introductionmentioning

confidence: 99%